In Broly's Full Power form, he looks similar to classic Broly. As for his father Paragus, he looks older compared to his non-canon Dragon Ball Z movie counterpart and now has a beard. The new Paragus still has a scar on his left eye. He still accompanies Broly with a certain ambition in mind. In addition, the device in his belt holds an important secret.
Dragon Ball Super: Broly is written and will feature character designs by series creator Akira Toriyama, and is directed by Tatsuya Nagamine (One Piece Film Z) with Naohiro Shintani (One Piece) serving as animation director, and Kazuo Ogura (The Garden of Sinners) serving as art director. The film is set to premiere on December 14th with the staff aiming for a global release on that same day.
[Source: ToyArk (link 2), @Herms98]